Reversible solid-state interconversion of rhodizonic acid H2C6O6 into H6C6O8 and the solid-state structure of the rhodizonate dianion C6O62- (aromatic or non-aromatic?)

被引：26

作者：

Braga, D

Cojazzi, G

Maini, L

Grepioni, F

机构：

[1] Univ Bologna, Dipartimento Chim G Ciamician, CNR, Ctr Fis Macromol, I-40126 Bologna, Italy

[2] Univ Sassari, Dipartimento Chim, I-07100 Sassari, Italy

来源：

NEW JOURNAL OF CHEMISTRY | 2001年 / 25卷 / 10期

关键词：

D O I：

10.1039/b107317f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Anhydrous rhodizonic acid H2C6O6 is obtained by (fully reversible) thermal dehydration of solid 2,3,5,5,6,6-hexahydroxycyclohex-2-ene 1,4-dione, H6C6O8, commonly known as rhodizonic acid dihydrate. Treatment of H6C6O8 with RbOH yields crystals of Rb2C6O6; the oxocarbon dianion C6O62- is shown to possess a flat, benzene-type structure, with C-C bonds shorter than expected for a (non-aromatic) ketonic-type structure.

引用

页码：1221 / 1223

页数：3

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